TW201501431A - Universal serial bus connector - Google Patents

Abstract

The present invention discloses a Universal Serial Bus connector which includes a first contact terminals and a second contact terminals. By increasing the width of a connection portion of a ground contact of the second contact terminals, and curving one signal contact of two pairs of signal contacts of the second contact terminals along beside one side of the connection portion of the ground contact of the second contact terminals such that the two pairs of signal contacts of the second contact terminals is distant from a signal contact of the first contact terminals in order to avoid or reduce the effects of crosstalk caused from the signal contacts of the first contact terminals to two pairs of signal contacts of the second contact terminals or from two pairs of signal contacts of the second contact terminals to the signal contacts of the first contact terminals and increase the transmission stability.

Description

Universal serial bus connector

The present invention relates to a universal serial bus connector, and more particularly to a universal serial bus connector for avoiding or reducing crosstalk interference.

Universal Serial Bus (USB) is a serial bus standard for connecting 3C systems and external devices. It is also a technical specification for input and output interfaces, and is widely used in 3C systems (eg, personal computers). Universal communication bus connector (universal serial bus receptacle connector) And a universal serial bus plug connector, wherein the universal serial bus socket connector is disposed on the device, and the universal serial bus plug connector is connected to the cable Sexual connections are used as messaging; therefore, the universal serial bus connector supports hot plugging and plug and play as its biggest feature. Since the release of USB 1.0 in 1996, it has been improved from 12 Mbit/s of the original transmission rate to 480 Mbit/s (Hi-Speed) of USB 2.0, and then improved to 5Gbit/s (Super-Speed) of today's USB 3.0. It not only has a faster transmission rate, but also supports full-duplex transmission and optical fiber transmission.

USB 3.0 is not designed to completely replace USB 2.0, but the specification upgrade and assistance. If the product is only USB 2.0 interface, it only needs to be based on USB 2.0 specification. Therefore, although USB 3.0 and USB 2.0 are completely different protocols from the perspective of the transmission interface technology, in order to be compatible with the backwards, a similar design is made on hardware, software and connectors. USB 2.0 is combined with USB 3.0.

Please refer to FIG. 1A, which is a schematic diagram of a prior art universal serial bus socket connector. As shown in FIG. 1A, a general USB 3.0 receptacle connector 90 includes a receptacle connector housing 901 that surrounds a receptacle connector tongue 902; and a receptacle connector The top surface of the tongue 902 includes four USB 2.0 socket connector terminals 903 (VBUS socket connector terminal, D+ socket connector terminal, D-socket connector terminal, GND socket connector terminal) for compatibility with USB 2.0; In addition, it also includes five USB 3.0 socket connector terminals 904 (SSRX+ socket connector terminal, SSRX-socket connector terminal, GND_DRAIN socket connector terminal, SSTX+ socket connector terminal, SSTX-socket connector terminal) for connection The USB 3.0 interface; wherein the USB 3.0 receptacle connector terminal 904 is disposed at the front end of the receptacle connector tongue 902, and the USB 2.0 receptacle connector terminal 903 is disposed behind the USB 3.0 receptacle connector terminal 904.

Next, please refer to FIG. 1B, which is a schematic diagram of a prior art universal serial bus plug connector. The USB 3.0 connector includes a USB 3.0 plug connector 92 in addition to the USB 3.0 receptacle connector 90; as shown in FIG. 1B, the USB 3.0 plug connector 92 includes a plug connector housing 921 surrounding a plug connector. The tongue plate 922; and the upper surface of the plug connector tongue 922 also includes four USB 2.0 plug connector terminals 923 (VBUS terminal, D+ terminal, D-terminal, GND terminal), and five USB 3.0 plug connector terminals 924 (SSRX+ terminal, SSRX-terminal, GND_DRAIN terminal, SSTX+ terminal, SSTX-terminal); and unlike the USB 3.0 receptacle connector 8, the USB 2.0 plug connector terminal 923 is disposed at the front end of the plug connector tongue 922 The USB 3.0 plug connector terminal 924 is disposed behind the USB 2.0 plug connector terminal 923.

Next, please refer to FIG. 1C, which is a cross-sectional view of the prior art universal serial bus socket connector connected to the plug connector. As shown in FIG. 1C, when the USB 3.0 receptacle connector 90 is connected to the USB 3.0 plug connector 92, the plug connector housing 92 is inserted into the receptacle connector housing 90 and the receptacle connector tongue 902 is Portions of the plug connector tongue 922 overlap but do not touch; the USB 2.0 receptacle connector terminal 903 is connected to the USB 2.0 plug connector terminal 923, and the USB 3.0 receptacle connector terminal 904 is connected to the USB 3.0 plug connector. Terminals 924 are connected to form an electrically conductive state whereby signals are transmitted and received.

Referring to Figure 1D, a bottom perspective view of a prior art universal serial bus socket connector. As shown in FIG. 1D, the USB 2.0 socket connector terminals 903 of the prior art USB 3.0 socket connector 90 are all arranged in parallel, and the USB 3.0 socket connector terminals 904 are also arranged in parallel, and are distributed above and below, and Four USB 2.0 socket connector terminals 903 are arranged at intervals between five USB 3.0 socket connector terminals 904; and four USB 2.0 socket connector terminals 903 and five USB ports can be seen from Figures 1A and 1D. The 3.0 socket connector terminals 904 are closely spaced from each other, so it is easy to cause crosstalk of D+/D- to SSTX+/SSTX- and SSRX+/SSRX-, which affects the quality of transmission; similarly, USB 3.0 plug Connector 92 also has the same problem.

In order to solve the above mentioned problems, it is a primary object of the present invention to provide a socket connector that reduces or avoids crosstalk interference.

According to the above object, the present invention provides a socket connector comprising: a tongue plate having a first terminal slot and a second terminal slot, wherein the first terminal group is composed of a plurality of terminals, and each terminal has a first a contact section, a first welding section, and a first connecting section connecting the first contact section and the first welding section, wherein the first terminal group is disposed in the first terminal slot and is composed of a plurality of terminals a terminal group, each terminal having a second contact segment, a second soldering segment, and a second connecting segment connecting the second contact segment and the second soldering segment, wherein the second terminal group is disposed in the second terminal slot, wherein The socket connector is characterized in that: the first terminal group comprises: a first pair of signal terminals disposed in the first terminal slot of the tongue plate, and the first contact segment is exposed on the tongue plate; a power terminal is configured In the first terminal slot of the tongue plate, and exposing the first contact segment on the tongue plate; and a ground terminal disposed in the first terminal slot of the tongue plate and exposing the first contact segment to the tongue Board; where the power terminal and ground terminal are configured a second pair of signal terminals; the second terminal group includes: a signal ground terminal disposed in the second terminal slot of the tongue plate and exposing the second contact segment on the tongue plate; a second pair of signals The terminals are respectively a second inner signal terminal and a second outer signal terminal disposed in the second terminal slot of the tongue plate, and the second pair of signal terminals are disposed on the right side of the signal ground terminal, and are exposed The second contact segment is on the tongue plate; and a third pair of signal terminals are respectively a third inner signal terminal and a third outer signal terminal, which are disposed in the second terminal slot of the tongue plate, and the third pair of signal terminals It is disposed on the left side of the signal ground terminal, and exposes the second contact segment on the tongue plate; wherein the second connecting segment of the signal ground terminal is widened to the sides to cover the first pair of signal terminals The first connection segment.

The socket connector of the present invention can widen the second connecting segment of the signal ground terminal inside the tongue plate, so that the second pair of signal terminals and the third pair of signal terminals are away from the first pair of signal terminals, thereby avoiding the first A pair of signal terminals (D+/D-) cause crosstalk to the second pair of signal terminals (SSTX+/ SSTX-) and the third pair of signal terminals (SSRX+/ SSRX-), making the transmission more stable.

Another main object of the present invention is to provide a plug connector that reduces or avoids crosstalk interference.

According to the above object, the present invention provides a plug connector comprising: a tongue plate having a first terminal slot and a second terminal slot, wherein the first terminal group is composed of a plurality of terminals, and each terminal is sequentially a first contact segment, a first extension segment, a first connection segment and a first welding segment. The first terminal group is disposed in the first terminal slot, and the second terminal group is composed of a plurality of terminals. Each terminal is composed of a second contact segment, a second extension segment, a second connection segment and a second welding segment, and the second terminal group is disposed in the second terminal slot, wherein the socket connector The first terminal group includes: a first pair of signal terminals disposed in the first terminal slot of the tongue plate and exposing the first contact segment on the tongue plate; and a power terminal disposed on the tongue plate In the first terminal slot, the first contact segment is exposed on the tongue plate; and a ground terminal is disposed in the first terminal slot of the tongue plate, and the first contact segment is exposed on the tongue plate; The power terminal and the ground terminal are disposed in the first pair of signals The second terminal group includes: a signal ground terminal disposed in the second terminal slot of the tongue plate and exposing the second contact segment on the tongue plate; a second pair of signal terminals respectively A second inner signal terminal and a second outer signal terminal are disposed in the second terminal slot of the tongue plate, and the second pair of signal terminals are disposed on the left side of the signal ground terminal, and the second contact segment is exposed And a third pair of signal terminals, respectively a third inner signal terminal and a third outer signal terminal, disposed in the second terminal slot of the tongue plate, and the third pair of signal terminals are disposed in the signal The second contact segment of the ground terminal is exposed on the right side of the ground terminal; wherein the second connecting segment of the signal ground terminal is widened to the sides to cover the first connection of the first pair of signal terminals segment.

According to the above object, the present invention provides another plug connector, comprising: a tongue plate having a first terminal slot and a second terminal slot, wherein the first terminal group is composed of a plurality of terminals, and each terminal is sequentially a first contact segment, a first extension segment, a first connection segment and a first welding segment, the first terminal group is disposed in the first terminal slot, and the second terminal is composed of a plurality of terminals Each of the terminals is composed of a second contact segment, a second extension segment, a second connection segment and a second welding segment, and the second terminal group is disposed in the second terminal slot, wherein the socket connector The first terminal group includes: a first pair of signal terminals disposed in the first terminal slot of the tongue plate and exposing the first contact segment on the tongue plate; and a power terminal disposed on the tongue plate The first terminal slot is exposed in the first terminal slot, and the first contact segment is exposed on the tongue plate; and a ground terminal is disposed in the first terminal slot of the tongue plate, and the first contact segment is exposed on the tongue plate; The power terminal and the ground terminal are arranged in the first pair of signals. The second terminal group includes: a signal ground terminal disposed in the second terminal slot of the tongue plate and exposing the second contact segment on the tongue plate; a second pair of signal terminals respectively A second inner signal terminal and a second outer signal terminal are disposed in the second terminal slot of the tongue plate, and the second pair of signal terminals are disposed on the left side of the signal ground terminal, and the second contact segment is exposed And a third pair of signal terminals, respectively a third inner signal terminal and a third outer signal terminal, disposed in the second terminal slot of the tongue plate, and the third pair of signal terminals are disposed in the signal The second terminal of the ground terminal is exposed on the tongue plate; wherein the second extension of the signal ground terminal is widened to the sides to cover the first extension of the first pair of signal terminals segment.

The plug connector of the present invention can widen the second connection segment or the second extension segment of the signal ground terminal inside the tongue plate, so that the second pair of signal terminals and the third pair of signal terminals are away from the first pair. The signal terminal prevents the first pair of signal terminals (D+/D-) from causing crosstalk to the second pair of signal terminals (SSTX+/SSTX-) and the third pair of signal terminals (SSRX+/SSRX-), so that the transmission can be more stable.

90‧‧‧USB 3.0 Receptacle Connector
901‧‧‧Socket connector housing
902‧‧‧ socket connector tongue
903‧‧‧USB 2.0 Receptacle Connector Terminal
904‧‧‧USB 3.0 Receptacle Connector Terminal
92‧‧‧USB 3.0 plug connector
921‧‧‧ plug connector housing
922‧‧‧plug connector tongue
923‧‧‧USB 2.0 plug connector terminal
924‧‧‧USB 3.0 plug connector terminal
1‧‧‧Common serial bus socket connector
10‧‧‧shell
101‧‧‧Open end
103‧‧‧Internal wall
12‧‧‧ Back seat
20‧‧ ‧ tongue
2011‧‧‧Upper surface
2013‧‧‧First terminal slot
2031‧‧‧ upper surface
2033‧‧‧Second terminal slot
22‧‧‧Contact surface
30‧‧‧First terminal group
301‧‧‧First contact segment
301 '‧‧‧First contact segment
301''‧‧‧First contact segment
301'''‧‧‧First contact segment
303‧‧‧First welding section
3031‧‧‧First soldering feet
305‧‧‧First connection segment
32‧‧‧First pair of signal terminals
34‧‧‧Power terminal
36‧‧‧ Ground terminal
40‧‧‧Second terminal group
401‧‧‧second contact section
401'‧‧‧second contact
401''‧‧‧second contact section
401'''‧‧‧second contact section
403‧‧‧Second welding section
4031‧‧‧Second welding feet
405‧‧‧Second connection
42‧‧‧ Signal Ground Terminal
421‧‧‧ Signal Ground Terminal Connection Section
4211‧‧‧ side
4213‧‧‧ side
44‧‧‧Second pair of signal terminals
441‧‧‧Second inner signal terminal
4411‧‧‧Second inner connecting section
4413‧‧‧wing
443‧‧‧Second outer signal terminal
4431‧‧‧Second outer connecting section
46‧‧‧ third pair of signal terminals
461‧‧‧ Third inner signal terminal
4611‧‧‧3rd inner connecting section
4613‧‧‧ wing
463‧‧‧Third outer signal terminal
4631‧‧‧Third outer connecting section
5‧‧‧Common serial bus plug connector
50‧‧‧shell
501‧‧‧Open end
503‧‧‧ upper wall
60‧‧ ‧ tongue
601‧‧‧Under the board
6011‧‧‧ upper surface
6013‧‧‧First terminal slot
603‧‧‧Upper board
6031‧‧‧ lower surface
6033‧‧‧Second terminal slot
70‧‧‧First terminal group
701‧‧‧First contact segment
701'‧‧‧First contact segment
701''‧‧‧First contact segment
701'''‧‧‧First contact segment
702‧‧‧First extension
703‧‧‧First connection segment
704‧‧‧First welding section
72‧‧‧First pair of signal terminals
721‧‧‧First signal terminal connection section
723‧‧‧First signal terminal extension
74‧‧‧Power terminal
76‧‧‧ Ground terminal
80‧‧‧second terminal group
801‧‧‧second contact section
801'‧‧‧second contact
801''‧‧‧second contact section
801'''‧‧‧second contact section
802‧‧‧ second extension
803‧‧‧Second connection
805‧‧‧Second welding section
82‧‧‧ Signal Ground Terminal
821‧‧‧ Signal Ground Terminal Connection Section
823‧‧‧ Signal Ground Terminal Extension
84‧‧‧Second pair of signal terminals
86‧‧‧ third pair of signal terminals
A1‧‧‧first spacing
A2‧‧‧second spacing
A3‧‧‧ third spacing
D, d1, d2, d3, d4, d5‧‧‧ width

Figure 1A is a schematic illustration of a prior art universal serial bus socket connector.
Figure 1B is a schematic illustration of a prior art universal serial bus header connector.
1C is a cross-sectional view of a prior art universal serial bus socket connector mated with a plug connector.
Figure 1D is a bottom perspective view of a prior art universal serial bus socket connector.
Figure 2 is an exploded view of the universal serial bus socket connector of the present invention.
Figure 3A is a top plan view of the tongue of the universal serial bus socket connector of the present invention.
Figure 3B is a side cross-sectional view of the tongue of the present invention.
Figure 4 is a bottom perspective view of the first embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention.
Figure 5 is a bottom perspective view of a second embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention.
Figure 6A is a bottom perspective view of a third embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention.
Figure 6B is a front cross-sectional view showing a third embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention.
Figure 7A is a bottom perspective view of a fourth embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention.
Figure 7B is a bottom perspective view of the fifth embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention.
8A is a schematic diagram showing the comparison of the widths of the first terminal group and the second terminal group of the universal serial bus socket connector of the present invention.
FIG. 8B is a schematic diagram showing the comparison of the widths of the first terminal group and the second terminal group of the universal serial bus socket connector of the present invention.
Figure 9 is an exploded view of the universal serial bus plug connector of the present invention.
Figure 10 is a side cross-sectional view of the tongue of the universal serial bus header connector of the present invention.
Figure 11 is a top perspective view of the first embodiment of the first terminal set and the second terminal set of the universal serial bus header connector of the present invention.
Figure 12 is a top perspective view of a second embodiment of the first terminal set and the second terminal set of the universal serial bus header connector of the present invention.
Figure 13 is a top perspective view of a third embodiment of the first terminal set and the second terminal set of the universal serial bus header connector of the present invention.

The present invention will be understood by those skilled in the relevant art, and the present invention will be described in the following description. The invention is further illustrated by the following examples, which are not intended to limit the invention, and the following drawings are intended to be illustrative of the features of the invention.

First, please refer to FIG. 2, which is an exploded view of the universal serial bus socket connector of the present invention. As shown in FIG. 2, the universal serial bus socket connector 1 includes a tongue plate 20 having an upper surface composed of a first surface 2011 and a second surface 2031. The first surface 2011 forms a first surface. The terminal groove 2013 has a second terminal groove 2033 formed on the second surface 2031. a first terminal group 30 consisting of a plurality of terminals, each terminal having a first contact segment 301, a first solder segment 303, and a first connecting segment connecting the first contact segment 301 and the first solder segment 303 305. The first terminal group 30 is disposed in the first terminal slot 2013. a second terminal group 40 consisting of a plurality of terminals, each terminal having a second contact segment 401, a second solder segment 403, and a second connecting segment connecting the second contact segment 401 and the second solder segment 403 405. The second terminal group 40 is disposed in the second terminal slot 2033.

The second terminal group 40 disposed in the second terminal slot 2033 exposes the second contact segment 401; the first solder segment 303 is bent upward to form a first soldering leg 3031, and the second soldering segment 403 is bent upward to form a first a soldering leg 4031; a housing 10 having an open end 101 for covering the tongue 20, and the tongue 20 and the inner and lower wall surfaces 103 of the housing 10 each maintaining a cavity, and the first contact section 301 and The second contact segment 401 is located at the open end 101; a rear seat 12 covers the rear end of the tongue plate 20 and has a plurality of holes for receiving the first soldering leg 3031 and the second soldering leg 4031, and the first soldering leg 3031 and the first soldering leg 3031 The second soldering leg 4031 protrudes upwardly from the rear seat 12; wherein the first contact segment 301 is an upwardly curved arched bump contact, and the second contact segment 401 is a planar contact.

Next, please refer to FIGS. 3A and 3B, which are top and side cross-sectional views of the tongue of the universal serial bus socket connector of the present invention; please refer to FIG. 3A, a plurality of first contact segments 301 are exposed to the tongue. On the first surface 2011 of the board 20, wherein each of the first contact segments 301 is arranged in parallel and maintains a first spacing a1 to ensure that the first contact segments 301 are isolated from each other; and the plurality of second contact segments 401 are exposed to On the second surface 2031 of the tongue 20, each of the second contact segments 401 is also arranged in parallel and maintains a second spacing a2 to ensure that the second contact segments 401 are isolated from each other, and the plurality of first contact segments 301 and plural A third spacing a3 is maintained between the second contact segments 401 to ensure that the first contact segments 301 and the second contact segments 401 are isolated from each other.

In addition, each of the first contact segments 301 is disposed at a gap formed by the second contact segment 401 and the second connecting segment 405 of each terminal of the second terminal group 40 adjacent to each other, so that each of the first contact segments 301 The second contact segment 401 and the second connecting segment 405 of each terminal of the second terminal group 40 do not overlap each other to reduce or avoid the first pair of signal terminals 32 (D+/D-) to the second pair of signal terminals. Crosstalk caused by 44 (SSTX+/ SSTX-) and the third pair of signal terminals 46 (SSRX+/ SSRX-).

In addition, since the first terminal group 30 is disposed on the first surface 2011 adjacent to the tongue 20, the first connecting portion 305 can also be exposed on the upper surface 2011 of the upper plate 201. In the embodiment of the present invention, each of the first contact segments 301 is arranged in parallel and maintains a first spacing a1 to ensure that the first contact segments 301 are isolated from each other, and each of the second contact segments 401 is also arranged in parallel and maintains a The second spacing a2 is used to ensure that the second contact segments 401 are isolated from each other and a third spacing a3 is maintained between the plurality of first contact segments 301 and the plurality of second contact segments 401. However, the technical features and rights of the present application The scope of protection is not limited to this. In other words, each of the first contact segments 301 is arranged in parallel and does not necessarily maintain the same equidistance; similarly, each of the second contact segments 401 is also arranged in parallel and does not necessarily maintain the same equidistance; the plurality of first contact segments 301 The arrangement between the front and rear of the plurality of second contact segments 401 does not necessarily maintain the same equidistance.

Please refer to FIG. 3B , in which the second terminal group 40 disposed in the tongue plate 20 is disposed under the first terminal group 30 , so when the second contact segment 401 of the second terminal group 40 needs to be exposed to the free end 201 When the contact surface 22 is connected, the second contact segment 401 of the second terminal group 40 needs to be bent upward and exposed; and the first terminal group 30 is directly exposed on the first surface of the tongue plate 20 because it is located above. The first soldering section 303 of the first terminal group 30 and the second soldering section 403 of the second terminal group 40 are bent upward to form a first soldering leg 3031 and a second soldering leg 4031 for electrical connection with the outside; The terminals of the first terminal group 30 and the second terminal group 40 can be integrally formed by brass, and assembled integrally with the tongue plate 20 by injection molding or assembled.

Next, referring to FIG. 4, it is a bottom perspective view of the first embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention. As shown in FIG. 4, the first terminal group 30 includes: a first pair of signal terminals 32 disposed in parallel with each other in the first terminal slot 2013 of the tongue plate 20, and exposing the first contact segment 301' (see the 3A is shown on the first surface 2011 of the tongue plate 20; the first pair of signal terminals 32 is a differential signal line (D+/D-) in a half-duplex mode for transmitting or receiving signals in one direction. A power terminal 34 is disposed in parallel with the first pair of signal terminals 32 in the first terminal slot 2013 of the tongue plate 20, and exposes the first contact segment 301 ′′ (see FIG. 3A ) to the tongue plate 20 . In the bottom view, the power terminal 34 is disposed on the right side of the first pair of signal terminals 32 for supplying power; and in a top view, the power terminal 34 is disposed on the first pair of signal terminals 32. Left side. A ground terminal 36 is disposed in parallel with the first pair of signal terminals 32 in the first terminal slot 2013 of the tongue plate 20, and exposes the first contact segment 301 ′′′ (see FIG. 3A ) to the tongue plate 20 . On the first surface 2011, in the bottom view, the ground terminal 36 is disposed on the left side of the first pair of signal terminals 32, mainly for providing a path for electrostatic discharge to avoid damage caused by static electricity passing through the electronic components; The ground terminal 36 is disposed on the right side of the first pair of signal terminals 32. Here, the first pair of signal terminals 32, the power terminal 34 and the ground terminal 36 of the first terminal group 30 are provided to the contact terminals of the USB 2.0.

Referring to FIG. 4 again, the second terminal group 40 includes: a signal ground terminal 42 disposed parallel to the first terminal group 30 in the second terminal slot 2033 of the tongue plate 20, and exposing the second contact segment 401' (see Fig. 3A) is on the second surface 2031 of the tongue plate 20; the signal ground terminal 42 serves as a reference point for the potential to provide a reference potential for the entire circuit. A second pair of signal terminals 44 are disposed in parallel with the first terminal group 30 in the second terminal slot 2033 of the tongue plate 20, and in a bottom view, the second pair of signal terminals 44 are disposed on the right side of the signal ground terminal 42. And exposing the second contact segment 401'' (see FIG. 3A) on the second surface 2031 of the tongue plate 20; the second pair of signal terminals 44 are in the simple mode differential signal line (SSTX+/SSTX-) For one-way transmission of signals. A third pair of signal terminals 46 are disposed in parallel with the first terminal group 30 in the second terminal slot 2033 of the tongue plate 20, and the third pair of signal terminals 46 are disposed on the left side of the signal ground terminal 42 in a bottom view. And exposing the second contact segment 401''' (see FIG. 3A) on the second surface 2031 of the tongue plate 20; the third pair of signal terminals 46 are in the simplex mode differential signal line (SSRX+/SRRX- ) for receiving signals in one direction. To this end, the signal ground terminal 42, the second pair of signal terminals 44, and the third pair of signal terminals 46 of the second terminal group 40 are provided to the contact terminals of the USB 3.0. The signal ground terminal 42, the second pair of signal terminals 44 and the third pair of signal terminals 46 are each composed of a second contact segment 401, a second connecting segment 405 and a second solder segment 403.

The signal ground terminal 42 is located in the signal ground terminal connection section 421 in the tongue 20, and the width of both sides thereof is larger than the first pair of signal terminals 32 located above, so that the signal view can be seen from the bottom perspective view of FIG. The width of the signal ground terminal connection section 421 of the line terminal 42 (ie, the second connection section 405) is greater than the width of the first pair of signal terminals 32, and partially covers the first pair of signal terminals 32; the signal ground terminal of the present invention is connected. The segment 421 covers a portion of the first connection segment 305 of the first pair of signal terminals 32 (see FIG. 1) and exposes portions of the first contact segment 301. The second pair of signal terminals 44 are divided into a second inner signal terminal 441 and a second outer signal terminal 443. The third pair of signal terminals 46 are divided into a third inner signal terminal 461 and a third outer signal terminal 463.

Since the signal ground terminal 42 located in the tongue 20 is increased in width, the second pair of signal terminals 44 are necessarily extended to an epitaxial shape; wherein the second inner signal terminal 441 on the right side of the signal ground terminal 42 has a second inner side The connecting portion 4411 (ie, the second connecting portion 405) is bent to the side and surrounds the right side of the signal ground terminal connecting portion 421 of the signal ground terminal 42 so as not to overlap each other and form a space, and the second outer side The second outer connecting portion 4431 of the signal terminal 443 (ie, the second connecting portion 405) is a straight strip shape, and is configured to be displaced to the right side and parallel to the second inner connecting portion 4411; likewise, at the signal ground terminal 42 The third inner signal terminal 461 on the left side, the third inner connecting portion 4611 (ie, the second connecting portion 405) is bent to the side and surrounds the left end of the signal ground terminal connecting portion 421 of the signal ground terminal 42, thereby making each other There is no overlap and a gap is formed, and the third outer connecting portion 4631 of the third outer signal terminal 463 (ie, the second connecting portion 405) is a straight strip shape, and is configured to be displaced to the left side and parallel to the third inner side. even Connect to segment 4611. By widening the signal ground terminal connection section 421 inside the tongue 20 and bending the second pair of signal terminals 44 and the third pair of signal terminals 46 to form a surrounding signal terminal connection section 421, the number of the ground terminal connection sections 421 can be reduced. Or avoiding the first pair of signal terminals 32 (D+/D-) causing crosstalk to the second pair of signal terminals 44 (SSTX+/SSTX-) and the third pair of signal terminals 46 (SSRX+/SSRX-).

Next, referring to FIG. 5, it is a bottom perspective view of a second embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention. As shown in FIG. 5, the second embodiment is mainly different from the first embodiment in that the signal ground terminal 42 is located in the signal ground terminal connection section 421 in the tongue 20, and partially covers the first pair of signal terminals. 32, but the width is equal to the width of the first pair of signal terminals 32; and the rest of the structure and components of the second embodiment are the same as those of the first embodiment, and will not be further described herein, and the effect is also to avoid the first pair. Signal terminal 32 (D+/D-) causes crosstalk to the second pair of signal terminals 44 (SSTX+/ SSTX-) and the third pair of signal terminals 46 (SSRX+/ SSRX-).

Next, please refer to FIGS. 6A and 6B, which are bottom perspective and front cross-sectional views of a third embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention. Please refer to FIG. 6A first. The third embodiment is mainly different from the first embodiment described above in that the signal ground terminal connection section 421 located in the tongue 20 also partially covers the first pair of signal terminals 32, but The two sides 4121 and 4213 of the covered signal ground terminal connection section 421 are bent toward the first pair of signal terminals 32.

Referring to FIG. 6B, the cross-sectional view shows that the two sides 4121 and 4213 of the signal ground terminal connection section 421 are bent toward the first pair of signal terminals 32 and cover the first pair of signal terminals 32 in a range, which is reduced. Or avoiding the first pair of signal terminals 32 (D+/D-) causing crosstalk interference to the second pair of signal terminals 44 (SSTX+/ SSTX-) and the third pair of signal terminals 46 (SSRX+/SSRX-); and the third embodiment The rest of the structures and components are the same as those of the first embodiment, and will not be further described herein.

Please refer to FIG. 7A, which is a bottom perspective view of a fourth embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention. As shown in FIG. 7, in the fourth embodiment, part of the signal ground terminal connection section 421 of the signal ground terminal 42 (ie, the second connection section 405 of the signal ground terminal 42) is widened, and partially covers the first pair of signals. The terminal 32 and the signal ground terminal connection section 421 have a width smaller than the width of the first pair of signal terminals 32. The second inner signal terminal 441 and the third inner signal terminal 461 are always rooted and parallel to the signal ground terminal 42; and the second outer signal terminal 443 is connected to the second outer connecting portion 4431 and the third outer signal terminal 463. The third outer connecting portion 4631 is partially displaced outward and parallel to the second inner signal terminal 441 and the third inner signal terminal 461. By widening the signal ground terminal connection section 421, the first pair of signal terminals 32 (D+/D-) to the second pair of signal terminals 44 (SSTX+/ SSTX-) and the third pair of signal terminals 46 (SSRX+) are reduced or avoided. / SSRX-) causes crosstalk interference.

Please refer to FIG. 7B, which is a bottom perspective view of a fifth embodiment of the first terminal set and the second terminal set of the universal serial bus socket connector of the present invention. As shown in FIG. 7B, the fifth embodiment is mainly different from the fourth embodiment in that a second inner connecting portion 4411 of the second inner signal terminal 441 extends a wing portion 4413 toward the second outer signal terminal 443. And maintaining a distance from the second outer signal terminal 443; and a third inner connecting portion 4611 of the third inner signal terminal 461, extending a wing portion 4613 toward the third outer signal terminal 463, and the third outer signal terminal 463 maintains a spacing; while the rest of the configuration and components of the fifth embodiment are the same as those of the fourth embodiment, and will not be further described herein, and the function is also to reduce or avoid the first pair of signal terminals 32 (D+/D-). Crosstalk is caused to the second pair of signal terminals 44 (SSTX+/ SSTX-) and the third pair of signal terminals 46 (SSRX+/ SSRX-).

Please refer to FIG. 8A and FIG. 8B , which are schematic diagrams showing the comparison of the widths of the first terminal group and the second terminal group of the universal serial bus socket connector of the present invention. Please refer to FIG. 8A and compare FIG. 1 . The width of the signal ground terminal connection section 421 of the present invention is D, and the width of the first pair of signal terminals 32 is d1. From the above description, it can be known that D is greater than or equal to d1. In addition, the interval between the side edges 4211, 4213 of the signal ground terminal connection section 421 and the second pair of signal terminals 44 and the third pair of signal terminals 46 is d2, d3, and the width of d2, d3 is greater than or equal to 0.4 mm. .

The first, second, third, fourth and fifth embodiments of the universal serial bus socket connector 1 of the present invention are connected to the signal ground terminal of the tongue 20 of the universal serial bus socket connector 1 The width of the 421 is greater than the width of the first pair of signal terminals 32, and partially covers or completely covers the connection portion of the first pair of signal terminals 32, reducing or avoiding the first pair of signal terminals 32 (D+/D-) to the second Crosstalk interference to signal terminal 44 (SSTX+/ SSTX-) and third pair of signal terminals 46 (SSRX+/ SSRX-) makes the transmission more stable.

The universal serial bus socket connector 1 must have a corresponding universal serial bus plug connector 5. Please refer to FIG. 9 , which is an exploded view of the universal serial bus plug connector of the present invention. The universal serial bus plug connector 5 includes a tongue plate 60 having a lower plate 601 and an upper plate 603. The upper surface 6011 of the lower plate 601 has a first terminal slot 6013 under the upper plate 603. The surface 6031 has a second terminal groove 6033. a first terminal group 70, each terminal having a first contact segment 701, a first extension segment 702, a first connection segment 703, and a first solder segment 704; the first terminal set 70 is disposed in the first terminal slot In the 6013, a first soldering section 704 extends from the rear end of the first terminal slot 6013. a second terminal group 80, each terminal having a second contact segment 801, a second extension segment 802, a second connection segment 803 and a second solder segment 804; the second terminal group 80 is disposed in the second terminal slot In the 6033, the second contact segment 801 and the second solder segment 804 extend from the front and rear ends of the second terminal slot 6033.

The lower contact plate 601 covers the upper surface 6031 of the upper plate 603, the first contact segment 701 disposed in the first terminal slot 6013, and the second contact segment 801 extending from the front end of the second terminal slot 6033; A housing 50 has an open end 501 for covering the tongue 60, and the terminal faces of the first contact segment 701 and the second contact segment 801 on the tongue plate 60 are spaced apart from the inner wall surface 503 of the housing 50. And located at the open end 501; wherein the first contact segment 701 is a planar contact, and the second contact segment 801 is an upwardly curved arched bump contact. Although the present invention is formed by laminating the tongue plate 60 and the upper plate 603 via the lower plate 601, the scope of the present invention or the technical features are not limited to this type of use, and the structure of the tongue plate 60 may be generated by an integral molding method. The assembly of the lower plate 601 and the upper plate 603 is not employed.

Next, please refer to FIG. 10, which is a side cross-sectional view of the tongue of the universal serial bus plug connector of the present invention. As shown in FIG. 10, when the first terminal group 70 and the second terminal group 80 are disposed on the tongue plate 60, the first terminal group 70 is located below the second terminal group 80. The first contact segment 701 of the first terminal set 70 extends upward and is bent from one end of the first extension segment 702 to form a height difference with the first extension segment 702; and the first connection segment 703 is formed by the first extension segment The other end of the 702 also extends upward and is bent to form a height difference with the horizontal section of the first extension 702, so that the first extension 702 forms a ㄩ-shaped structure. The second contact segment 801 and the second extension segment 802 of the second terminal group 80 are disposed above the first extended segment 702 ㄩ structure, and the second contact segment 801 and the first contact segment 701 are maintained at approximately the same horizontal plane; The two connecting sections 803 are extended upward and bent by one end of the second extended section 802 to form a height difference with the horizontal section of the second extended section 802. The terminal faces of the first contact segment 701 and the second contact segment 801 on the tongue plate 60 are spaced apart from the inner wall surface 503 of the housing 50 for insertion of the tongue plate 60 of the universal serial bus socket connector 1 and The terminals are in contact with each other (refer to Figure 1C).

Referring to Figure 11, there is shown a top perspective view of a first embodiment of a first terminal set and a second terminal set of a universal serial bus header connector of the present invention. As shown in FIG. 11, the first terminal group 70 includes a first pair of signal terminals 72 disposed in parallel with each other in the first terminal slot 6013 of the tongue plate 60, and exposing the first contact segment 701' to the lower plate. The upper surface 6011 is 601; the first pair of signal terminals 72 are differential signal lines (D+/D-) in a half-duplex mode for transmitting or receiving signals in one direction. A power terminal 74 is disposed in parallel with the first pair of signal terminals 72 in the first terminal slot 6013 of the tongue plate 60, and exposes the first contact segment 701 ′′ on the upper surface 6011 of the upper plate 603; In a top perspective view, the power terminal 74 is disposed on the left side of the first pair of signal terminals 72 for supplying power. a ground terminal 76 is disposed in parallel with the first pair of signal terminals 72 in the first terminal slot 6013 of the tongue plate 60, and exposes the first contact segment 701 ′′′ on the upper surface 6011 of the upper plate 603; In a top perspective view, the ground terminal 76 is disposed on the right side of the first pair of signal terminals 72, mainly for providing a path for electrostatic discharge to prevent damage caused by static electricity passing through the electronic components. To this end, the first pair of signal terminals 72, the power terminals 74, and the ground terminal 76 of the first terminal set 70 are provided to the contact terminals of the USB 2.0.

Referring to FIG. 11 again, the second terminal group 80 includes: a signal ground terminal 82 disposed parallel to the first terminal group 70 in the second terminal slot 6033 of the tongue plate 60 and extending out of the second contact segment. 801' is at the front end of the lower plate 601; the signal ground terminal 82 serves as a reference point for the potential to provide a reference potential for the entire circuit. A second pair of signal terminals 84 are disposed in parallel with the first terminal group 70 in the second terminal slot 6033 of the tongue plate 60. The second pair of signal terminals 84 are disposed on the signal ground terminal 82 in a top perspective view. On the left side, the second contact segment 801'' extends to the front end of the lower plate 601; the second pair of signal terminals 84 is a simple signal type differential signal line (SSTX+/SSTX-) for transmitting signals in one direction. A third pair of signal terminals 86 are disposed in parallel with the first terminal group 70 in the second terminal slot 6033 of the tongue plate 60. The third pair of signal terminals 86 are disposed on the signal ground terminal 82 in a top perspective view. On the right side, the second contact segment 801''' extends to the front end of the lower plate 601; the third pair of signal terminals 86 is a simplex mode differential signal line (SSRX+/SSRX-) for receiving signals in one direction. To further illustrate, the signal ground terminal 82, the second pair of signal terminals 84, and the third pair of signal terminals 86 of the second terminal group 80 are provided to the contact terminals of the USB 3.0.

The signal ground terminal 82 is located in the signal ground terminal connection segment 821 (ie, the second connection segment 803 of the signal ground terminal 82) in the tongue plate 60, which widens to both sides and partially covers the first pair of signal terminals. The first signal terminal connection section 721 of 72 (ie, the first connection section 703 of the first pair of signal terminals 72); and the first signal terminal connection section 721 is displaced inwardly, so that the first signal terminal connection section 721 is located at the signal ground. The line terminal connecting section 821 is covered. With this configuration, the first pair of signal terminals 72 (D+/D-) can be reduced or prevented from causing crosstalk to the second pair of signal terminals 84 (SSTX+/ SSTX-) and the third pair of signal terminals 86 (SSRX+/ SSRX-) interference.

Next, referring to Fig. 12, it is a top perspective view of a second embodiment of the first terminal set and the second terminal set of the universal serial bus plug connector of the present invention. As shown in FIG. 12, the second embodiment of the universal serial bus plug connector 5 is mainly different from the above-described first embodiment in that, in the second embodiment, the signal ground terminal extension 823 of the signal ground terminal 82 is shown. (ie, the second extension 802 of the signal ground terminal), which widens to both sides and partially covers the first signal terminal extension 723 of the first pair of signal terminals 72 (ie, the first extension of the first pair of signal terminals 72) The first signal terminal extension 723 is displaced inwardly, such that the first signal terminal extension 723 is within the coverage of the signal ground terminal extension 823. With this configuration, the first pair of signal terminals 72 (D+/D-) can be prevented from causing crosstalk to the second pair of signal terminals 84 (SSTX+/SSTX-) and the third pair of signal terminals 86 (SSRX+/SSRX-). The rest of the configuration and components of the second embodiment are the same as those of the first embodiment, and will not be further described herein.

Next, referring to Fig. 13, is a top perspective view of a third embodiment of the first terminal set and the second terminal set of the universal serial bus plug connector of the present invention. As shown in FIG. 13, the third embodiment of the universal serial bus plug connector 5 is mainly different from the first embodiment and the second embodiment in that, in the third embodiment, the signal ground terminal 82 is separated by a signal. The ground terminal connection segment 821 (ie, the second connection segment 803 of the signal ground terminal 82) is connected to the signal ground terminal extension 823 (ie, the second extension 802 of the signal ground terminal), which is added to both sides. The portion of the first signal terminal connection portion 721 that is wide and partially covers the first pair of signal terminals 72 is connected to the first signal terminal extension portion 723; and the first signal terminal connection portion 721 is connected to the portion of the first signal terminal extension portion 723 The inner side is displaced such that the portion of the first signal terminal connecting portion 721 connected to the first signal terminal extending portion 723 is within the covering range of the portion of the signal ground terminal connecting portion 821 connected to the signal ground terminal extending portion 823. With this configuration, the first pair of signal terminals 72 (D+/D-) can be reduced or prevented from causing crosstalk to the second pair of signal terminals 84 (SSTX+/ SSTX-) and the third pair of signal terminals 86 (SSRX+/ SSRX-) interference. The rest of the configuration and components of the third embodiment are the same as those of the first embodiment, and will not be further described herein.

The first, second, third and fourth embodiments of the universal serial bus plug connector 5 of the present invention are connected to the segment 821, the signal by the signal ground terminal inside the tongue plate 60 of the universal serial bus bar connector 5 The portion of the ground terminal extension 823 is widened to reduce or avoid the first pair of signal terminals 72 (D+/D-) to the second pair of signal terminals 84 (SSTX+/ SSTX-) and the third pair of signal terminals 86 (SSRX+/ SSRX -) Causes crosstalk interference, making the transmission more stable.

Although the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the present invention, and it is to be understood that those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The patent protection scope of the present invention is defined by the scope of the patent application attached to the specification.

20‧‧ ‧ tongue

30‧‧‧First terminal group

32‧‧‧First pair of signal terminals

34‧‧‧Power terminal

36‧‧‧ Ground terminal

40‧‧‧Second terminal group

42‧‧‧ Signal Ground Terminal

421‧‧‧ Signal Ground Terminal Connection Section

44‧‧‧Second pair of signal terminals

441‧‧‧Second inner signal terminal

4411‧‧‧Second inner connecting section

443‧‧‧Second outer signal terminal

4431‧‧‧Second outer connecting section

46‧‧‧ third pair of signal terminals

461‧‧‧ Third inner signal terminal

4611‧‧‧3rd inner connecting section

463‧‧‧Third outer signal terminal

4631‧‧‧Third outer connecting section

Claims (13)

A socket connector includes: a tongue plate having a first terminal slot and a second terminal slot, wherein the first terminal group is composed of a plurality of terminals, each of the terminals has a first contact segment and a first terminal a welding section, and a first connecting section connecting the first contact section and the first welding section, wherein the first terminal group is disposed in the first terminal slot, and the second terminal group is composed of a plurality of terminals Each of the terminals has a second contact segment, a second soldering segment, and a second connecting segment connecting the second contact segment and the second soldering segment, the second terminal group being disposed in the second terminal slot The socket connector is characterized by:
The first terminal group includes:
a first pair of signal terminals disposed in the first terminal slot of the tongue plate and exposing the first contact segment on the tongue plate;
a power terminal disposed in the first terminal slot of the tongue plate and exposing the first contact segment on the tongue plate; and a ground terminal disposed on the first terminal of the tongue plate Inside the groove, and exposing the first contact segment to the tongue plate;
The power terminal and the ground terminal are disposed on two sides of the first pair of signal terminals;
The second terminal group includes:
a signal ground terminal disposed in the second terminal slot of the tongue plate and exposing the second contact segment on the tongue plate;
a second pair of signal terminals, respectively a second inner signal terminal and a second outer signal terminal, disposed in the second terminal slot of the tongue plate, and the second pair of signal terminals are disposed on the signal ground The second contact segment is exposed on the right side of the line terminal; and a third pair of signal terminals are respectively a third inner signal terminal and a third outer signal terminal, which are disposed on the tongue plate In the second terminal slot, the third pair of signal terminals are disposed on the left side of the signal ground terminal, and the second contact segment is exposed on the tongue plate;
The second connecting segment of the signal ground terminal is widened to both sides to cover the two first connecting segments of the first pair of signal terminals. The socket connector of claim 1, wherein the socket connector is a universal serial bus socket connector. The socket connector of claim 1, wherein the second connection segment of the signal ground terminal has a width greater than a width of the two first connection segments of the first pair of signal terminals. The socket connector of claim 1, wherein the second connection segment of the signal ground terminal has a width equal to a width of the two first connection segments of the first pair of signal terminals. According to the socket connector of claim 1, wherein the second connecting portion of the signal ground terminal is widened to both sides, and the width is smaller than the two first connecting segments of the first pair of signal terminals. width. The socket connector of claim 3, wherein the left and right sides of the second connecting section of the signal ground terminal are bent toward the first pair of signal terminals. The socket connector of claim 1, wherein the second connecting section of the second outer signal terminal is configured to be displaced to the right side and parallel to the second connecting section of the second inner signal terminal, the third The second connecting section of the outer signal terminal is configured to be displaced to the left side and parallel to the second connecting section of the third inner signal terminal. The socket connector of claim 1, wherein each of the first contact segments of the first terminal group is disposed at a second contact segment of each adjacent terminal of the second terminal group. The gap formed around the second connecting segment is such that the first contact segment of the first terminal segment and the second contact segment of each terminal of the second terminal segment do not overlap with each other. The socket connector of claim 1, wherein the second connecting portion of the second inner signal terminal is bent to the side and surrounds the right side of the second connecting portion of the signal ground terminal, and maintains a spacing. The second connecting portion of the third inner signal terminal is bent to the side and surrounds the left side of the second connecting portion of the signal ground terminal, and maintains a spacing. A plug connector comprising: a tongue plate having a first terminal slot and a second terminal slot, wherein the first terminal set is composed of a plurality of terminals, each of the terminals being sequentially connected by a first contact segment, a first extension group, a first connection segment and a first welding segment, wherein the first terminal group is disposed in the first terminal slot, and the second terminal group is composed of a plurality of terminals, each of the terminals Forming a second contact segment, a second extension segment, a second connection segment, and a second welding segment, the second terminal group is disposed in the second terminal slot, wherein the socket connector Features are:
The first terminal group includes:
a first pair of signal terminals disposed in the first terminal slot of the tongue plate and exposing the first contact segment on the tongue plate;
a power terminal disposed in the first terminal slot of the tongue plate and exposing the first contact segment on the tongue plate; and a ground terminal disposed on the first terminal of the tongue plate Inside the groove, and exposing the first contact segment to the tongue plate;
The power terminal and the ground terminal are disposed on two sides of the first pair of signal terminals;
The second terminal group includes:
a signal ground terminal disposed in the second terminal slot of the tongue plate and exposing the second contact segment on the tongue plate;
a second pair of signal terminals, respectively a second inner signal terminal and a second outer signal terminal, disposed in the second terminal slot of the tongue plate, and the second pair of signal terminals are disposed on the signal ground The second terminal of the line terminal is exposed on the tongue plate; and a third pair of signal terminals are respectively a third inner signal terminal and a third outer signal terminal, which are disposed on the tongue plate In the second terminal slot, the third pair of signal terminals are disposed on the right side of the signal ground terminal, and the second contact segment is exposed on the tongue plate;
The second connecting segment of the signal ground terminal is widened to both sides to cover the two first connecting segments of the first pair of signal terminals. The plug connector of claim 9, wherein the first connecting portion of the first signal terminal is displaced inward, such that the first connecting portion of the first signal terminal is located at the second of the signal ground terminal Within the coverage of the connecting section. A plug connector comprising: a tongue plate having a first terminal slot and a second terminal slot, wherein the first terminal set is composed of a plurality of terminals, each of the terminals being sequentially connected by a first contact segment, a first extension group, a first connection segment and a first welding segment, wherein the first terminal group is disposed in the first terminal slot, and the second terminal group is composed of a plurality of terminals, each of the terminals Forming a second contact segment, a second extension segment, a second connection segment, and a second welding segment, the second terminal group is disposed in the second terminal slot, wherein the socket connector Features are:
The first terminal group includes:
a first pair of signal terminals disposed in the first terminal slot of the tongue plate and exposing the first contact segment on the tongue plate;
a power terminal disposed in the first terminal slot of the tongue plate and exposing the first contact segment on the tongue plate; and a ground terminal disposed on the first terminal of the tongue plate Inside the groove, and exposing the first contact segment to the tongue plate;
The power terminal and the ground terminal are disposed on two sides of the first pair of signal terminals;
The second terminal group includes:
a signal ground terminal disposed in the second terminal slot of the tongue plate and exposing the second contact segment on the tongue plate;
a second pair of signal terminals, respectively a second inner signal terminal and a second outer signal terminal, disposed in the second terminal slot of the tongue plate, and the second pair of signal terminals are disposed on the signal ground The second terminal of the line terminal is exposed on the tongue plate; and a third pair of signal terminals are respectively a third inner signal terminal and a third outer signal terminal, which are disposed on the tongue plate In the second terminal slot, the third pair of signal terminals are disposed on the right side of the signal ground terminal, and the second contact segment is exposed on the tongue plate;
The second extension of the signal ground terminal is widened to both sides to cover the two first extensions of the first pair of signal terminals. The plug connector of claim 11, wherein the first extension of the first signal terminal is displaced inwardly such that the first extension of the first signal terminal is located at the second of the signal ground terminal Within the coverage of the extension.